function setActiveStyleSheet(title) {
  var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
      a.disabled = true;
      if(a.getAttribute("title") == title) a.disabled = false;
    }
  }
}

function getActiveStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
  }
  return null;
}

function getPreferredStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1
       && a.getAttribute("rel").indexOf("alt") == -1
       && a.getAttribute("title")
       ) return a.getAttribute("title");
  }
  return null;
}

function createCookie(name,value) {
  var expires = "; expires=-1";
  document.cookie = name+"="+value+"; path=/";
}

function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}

function adjCols() {
    var priContent = document.getElementById('content_pri');
    var allDivs = priContent.getElementsByTagName('div');
    var maximumHeight = 0;
    var allMatchingDivs = new Array();
    for(var i = 0; i < allDivs.length; ++i)
        if(allDivs[i].className == 'orarrow') {
            allDivs[i].style.height = 'auto';
            maximumHeight = Math.max(maximumHeight, allDivs[i].offsetHeight);
            allMatchingDivs.push(allDivs[i]);
        }
    for(var i = 0; i < allMatchingDivs.length; ++i)
        allMatchingDivs[i].style.height = maximumHeight + 'px';
}

window.onload = function(e) {
  var cookie = readCookie("style");
  var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title);
  adjCols();
}

window.onunload = function(e) {
  var title = getActiveStyleSheet();
  createCookie("style", title);
}

var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);


function GetTextSize() {
	var i, a, size;
	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
		if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) {
			size = a.getAttribute("title");
		}
	}
	return size;
}

function DecreaseTextSize(size) {
	var changedSize;
	changedSize = parseInt(size);
	if (changedSize == 66) {
		window.location.href = document.URL;
		return;
	}
	else {
		changedSize = changedSize - 10;
		setActiveStyleSheet(changedSize);
		window.location.href = document.URL;
		return;
	}
}

function IncreaseTextSize(size) {
	var changedSize;
	changedSize = parseInt(size);
	size = changedSize;
	if (changedSize == 96) {
		window.location.href = document.URL;
		return;
	}
	else {
		changedSize = changedSize + 10;
		setActiveStyleSheet(changedSize);
		window.location.href = document.URL;
		return;
	}
}